Royal Wedding Fans Already Camping Out

Princess Diana superfan John Loughrey will sleep on the sidewalk for the next three nights.
"I'm here now and I'm here to stay," Loughrey said outside Westminster Abbey.
"Diana would be very proud of her son."

Loughrey Is a Longtime Fan of Princess Diana

Loughrey has brought his sleeping bag and will be using the sidewalk as a mattress. Gwen Murray at least brought a chair.

Watch a special '20/20' Thursday at 8 p.m. ET for a behind-the-scenes look at the life that awaits Kate Middleton and join us again at 4 a.m. Friday for ABC News' live coverage of the Royal Wedding with Diane Sawyer and Barbara Walters